<?php
/**
 * Magento
 *
 * NOTICE OF LICENSE
 *
 * This source file is subject to the Open Software License (OSL 3.0)
 * that is bundled with this package in the file LICENSE.txt.
 * It is also available through the world-wide-web at this URL:
 * http://opensource.org/licenses/osl-3.0.php
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@magentocommerce.com so we can send you a copy immediately.
 *
 * DISCLAIMER
 *
 * Do not edit or add to this file if you wish to upgrade Magento to newer
 * versions in the future. If you wish to customize Magento for your
 * needs please refer to http://www.magentocommerce.com for more information.
 *
 * @copyright  Copyright (c) 2014 X.commerce, Inc. (http://www.magentocommerce.com)
 * @license    http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
 */
namespace Magento\Tools\Di\Code\Scanner;

class DirectoryScanner
{
    /**
     * Scan directory
     *
     * @param string $dir
     * @param array $patterns
     * @return array
     */
    public function scan($dir, array $patterns = array())
    {
        $output = array();
        /** @var $file \DirectoryIterator */
        foreach (new \RecursiveIteratorIterator(new \RecursiveDirectoryIterator($dir)) as $file) {
            if ($file->isDir()) {
                continue;
            }

            foreach ($patterns as $type => $pattern) {
                $filePath = str_replace('\\', '/', $file->getRealPath());
                if (preg_match($pattern, $filePath)) {
                    $output[$type][] = $filePath;
                    break;
                }
            }
        }
        return $output;
    }
}
